Pulsed power applications

simulation in QuickField

Vladimir Podnos, Director of Marketing and Support,

Tera Analysis Ltd.

Alexander Lyubimtsev Support Engineer,

Tera Analysis Ltd.

QuickField Analysis Options

Magnetic analysis suite

Magnetic Problems

Magnetostatics

AC Magnetics

Transient Magnetics

Electric analysis suite

Electric Problems

Electrostatics and DC Conduction

AC Conduction

Transient Electric field

Thermostructural analysis suite

Thermal and

mechanical

problems

Steady-State Heat transfer

Transient Heat transfer

Stress analysis

QuickField Analysis Options

Magnetic analysis suite

Magnetic Problems

Magnetostatics

AC Magnetics

Transient Magnetics

Electric analysis suite

Electric Problems

Electrostatics and DC Conduction

AC Conduction

Transient Electric field

Thermostructural analysis suite

Thermal and

mechanical

problems

Steady-State Heat transfer

Transient Heat transfer

Stress analysis

Model Physical parameters

Result

Stages of solution

Transient field sources

abs

sign

max

min

step

impulse

sin

cos

tan

asin

acos

atan

atan2

exp

log

sqrt

pow

saw

Built in functions:

Transient results

Time table

Time plot

Time layers

MultiPhysics.

Joule

Heat

Stresses &

Deformations

Thermal

Stresses Forces

Electromagnetic

fields

Temperature

Field

Temperature

s

Magnetic state

import

Open object interface

QuickField Difference

Pulsed power applications

simulation in QuickField

Vladimir Podnos, Director of Marketing and Support,

Tera Analysis Ltd.

Alexander Lyubimtsev Support Engineer,

Tera Analysis Ltd.

Simulating with QuickField

1.Disc capacitor. Voltage pulse.

2.Lightning arrester.

3.Multi-turn coil. Voltage pulse.

4.Pulse transformer.

5.Coil heating

6.Coil stress

Disc capacitor

Problem specification:

Voltage step U = 1 kV

Dielectric relative

permittivity e = 4

Metal conductivity s = 56e6 S/m

10

All dimensions are in mm.

Calculate electric current I(t)

50

Lightning arrester

Problem specification:

Rate voltage U = 35 kV

Zn0 permittivity e = 60

Zn0 conductivity s = s(E)

Lightning surge

All dimensions are in mm.

Calculate electric current I(t)

http://www.quickfield.com/advanced/telec2.htm

Problem specification:

Number of turns

N = 275

Voltage U = 100 V

Pulse duration Dt = 0.1 s

Multi-turn coil

5

0

1

00

300

Calculate electric current I(t)

t, c

Dt

U

All dimensions are in mm.

Pulse transformer

Find flux density outside

the air gap

Problem specification:

Number of turns N1 = 13,

Number of turns N2 = 200,

Currents in windings:

http://www.quickfield.com/advanced/flyback_transformer_emc.htm

I, A

0.8

1

t, мc

Coil heating

Problem specification:

Convection coefficient

= 10 W/K*m2

Voltage supply

Volume power

W = Power / Volume

5

0

1

00

300 t, s

1 ms

U, V

100

9 ms

All dimensions are in mm.

Coil stress

Problem specification:

Young modulus of copper

E = 17 GPa, ν = 0.33.

Young modulus of compound

E = 3 GPa, ν = 0.45.

Calculate mechanical stress

and deformation of the coil

5

0

1

00

300

All dimensions are in mm.

Pulsed power applications

simulation in QuickField

Vladimir Podnos, Director of Marketing and Support,

Tera Analysis Ltd.

Alexander Lyubimtsev Support Engineer,

Tera Analysis Ltd.